Elevator-lock.



No. 648,678. Patented May I, ISG.

E. E. ANGELL.

ELEVATOR LUCK.

Application mea may 2e, 1899.) Y model.) 3 sheets-snm No. 648,678.Patented may l, '1900.

' E. E. ANGELL. f

ELEVATUR LOCK.

(Application filed May 26, 1899,)

3 sheds-sheet 2.

(Model.)

Nn. 648,678. Patented May I, i900.

' E. E. ANGELL. -A

ELEVATUB LOCK.

Y (Applcatinn led Mayv26, 1899.) n (Model.) 3 Shouts-Sheet 3.

Vif M @M g ma @ma ,Nrrs STATESV PATENT Ormes.

suivis-s. ANGELI., or soneRvIL-LE, MAssAoHUsnTTs,AssJeNoR-To1 THE ANGELLELEvA'ron Loon-COMPANY, or sACo, MAINE.

E-LEvAToR-Lock'.-

sPEcFIcArIoN forming pm .offres-.ers meent No. 648,678, 'dated may1',"'1`9oo.`

` Application led May 26, 1899. Serial No. 718,314. (Model.)

T all whom it may concern:

Ile it known that 1 EDWIN E. ANGELL, of

Somerville, inthe county of Middlesex and i State of Massaclnisetts,haveinvented certain 5 new and useful Improvements in Elevator- Iioelis, ofwhich the following is a speciiic'ation.

-provements in elevator-locks, and is in the natureof an improvement onthat disclosedvin United States Letters Patent issnedto' me September17, 188i), No. `411,274. l

The object f my'invention is to provide a loclrfor. preventing thejawoperating lever-v from being manipulatedby persons. without'authority to use the'elevator. In this arfrangement the jawsa`re'loclgedand cannothe unlocked unless a person has akey'to' unlock.

of the operating-'jaw'. lever foropening the jaws. v

pointedoutin the claims.

tion, 'Figure l isa longitudinal sectionalview through' my'im provedelevator-lock. Fig. 2 is a plan view of the sam e, showing in dottedlines Athejaws opened'. Fig. 3is anv end view ofthe closing'the'jaw's.'Fig. 5 isa side view-ofthe locking-spindle. ,Fig-dise vsectional ViewFig. 7'is an en dview'Of-the locking-spindle.

Fig. 8 is anend -view of the spindle-retaining -n'ut inclosing. the endofthe spindle. Fig. 9

l j isaseetionalview through the spindle retain' 4o ing nut. Fig. 104 isa side `View of'. thekey for operating'tlie spindle.: Iii-gs. 11 and "12f'are respectively end .and side 'views ofl the lever vfor operatiugthe'jaws.

My invention relatesto new and useful im-A 4the mechanism whichallows-the movement- My inve-utionconsists ofveert-ain novel fea'- ltures 'l ereinafter described, and particularly VIn the accompanying'drawings,.which illnsy 1 trate aconstruction.embodying myiuvenfrontsection of the elevator-lock. Fig. 4 isav plan' view of "the jaws withthe springs for through the spindle-'on the lineX X,7F, ig. 5.

Fig..f l3 showsV Like letters of reference refer tolke parts throughoutthe several Views. y

The head or' holder -A is provided on its front end with twotrumpet-shaped guides A A2; The outer' portion A3 of said guides 55 issecured to the niain head by four screws B Aand'lugs vB B2 in a mannersimilar. to that.

Ashown in thefpatent previously lreferred to,

The outer portion Asis provided with a con- 4 uecting-ribOfor thepurpose of Aconnecting 6o the top :end bottom and strengthening said'portion.

.'Mounted on the 'screw-pin D are'two opposite jaws E E', against whichrespectively bear .the springs F- F, heldI in'place in the opposite 6 5ears-G. by the-set-screws 'G'. The operatingl'ever H ispivote'd inthehead-on the pin H', and its lower endis grooved lout at H2 to fit arindthe neckT oftie locking-spindle '.I.

In advance of said groove 112 is a recess H3, 7`o and when thelocking-lever is thrown forward, as shown igudotted lines, Fig. 1, andthejaws are closedsaid locking-spindle may be turned .by thekey ,L' inpos'tionforthe -rear end of :the head J to engage with said recess Hs(see 7 5 Fig. 16). and. loekthe lever against rearward movement,andconsequently prevent the opening-of the ja-wsj; The ispin'dle-J ispro-" vided'with a. should-er J, having a slot J3, with whiich'isladapted to engage the spring `48o Award-pinK,.mounted .in the' head .orholder A, asshown in Fig 1. v

-..'-With thevvgaws open, as .shown in dottedlines, Fig. 2, with thelever in its rearward position and it is desired tol close-the jaws, -85

asshown in Fig.l 4, vthelever H .is-thrown for ward lto thepositiolshown in dotted lines,

Fig.`1; The keyL is then inserted (see Fig.

15') through the spindlereta'ining'nut M and the -lslot J 5 in theouterend 4J4* of the locking- '9o spindle J.

. In its insertion thel mainprojection K on the key L pushes upthe'ward-pin,

K from its vposition in the slot Ji in the shout der 'J 2 ofthelocking-spindle? With the wardpin outof the slot the spindle can then beturnedhalf-way by the keyto kbringthe parte into locking position, aspreviously described', with the key in the position shown in Fig. 14,when'the ward-pin K `will drop into-the opposite side of the slot 'JS inthe shoulder J 10o 2 essere.

` When uns is taking place, the heady of the spindle J has passed intoengagement with the recess I-I3 in the lever H, (see Fig 16,) andinasmuch as the spindle is lockedit is obvious-that the jaws are heldclosed by the springs F F and cannot be opened until the key is againinserted and the locking-spindle reversedto the position shown in Fig;1, when the lever can be thrown to the rear andthe jaws opened by thelever I-I bearing against both sides of the cam-shaped jaws E2. The earK2 on the key L passes through the slot M2 and holds the main projectionK npwardly in the slot M' during the passage ofthe key through the slotJ5 in the endgJ" of the spindle and its entrance into the slot J3 of theshoulder J2, and the' ward-pin is thus raised 'by said main projectionK' to admit the turning of the locking-spindle J.

From the above description it isobvions kthat the jaws cannot be openedand the ship V.ping-rope moved to operate the elevator' exa pair ofspring-closed independent jaws piv' oted in said holder, an gperaling-lever located between said jaws which are recessed to receive thelever and provided with cam-snrfaces against which the lever acts toopen the jaws when said leveris moved from au inoperativevto anoperative position, and means for locking said operating-lever in its-inoperative position.

2. In an elevator-lock, a holder, a pair of springclosed independentjaws. pvoted in said holder, an operating-lever located between saidjaws and adapted to open the same when moved from au inoperative to anoperative position, locking mechanism for engaging with said lever whenmoved to its inoperative position, and means for retaining said lockingmechanism in engagement with said lever when in its operativ-e position.

3. ln an. elevators-lock, a holder, a pair of spring-closed independentjaws pivoted in said l1older,' an opei-'ating-lever located betweensaidjaws and adapted toopen the same when moved from an inoperative toan operative positionfa rotary spindle for engaging with said leverwhenin its inoperative posivtion to lock the same against movement, and

means for holdingsaid spindle in the position to which moved there beinga slot in said spin` dle into which a key may be inserted to operatesaid locking mechanism and permit the movement of the spindle to releasethe operating-lever from its locking position.

LL. In an elevator-lock, a holder, a pair of sprjng-elosed independentjaws-pivoted inA said holder, an operating-lever located between saidjaws and adapted to open Lhesamo `Iwhen moved fromran inoperative to anoper- May, A. D. 185m.

' EDWIN E. ANGELI..

Witnesses: y

A. L. Massen, C. A, STEWART.

